This was mentioned recently but for ease of search I thought I would post as a topic.
I like most here I'm not overkeen on removing the tunnel cover to bleed the clutch fluid. It was posted to fit a hose which could be fitted into the slave nipple and the other end clipped to the bulkhead so bleeding could easily be done from the engine bay. In detail I ordered the following:-
3/8 x 24 male swivel (slave end)
320mm hose
M10 x 1 female swivel (bleed nipple end)
M10 x 1 bleed nipple.
I could have ordered an imperial female but the company, Furore, didn't sell a 3/8 nipple and I couldn't be bothered to order or fit my original nipple. I haven't fitted it yet but trialed and the length looks OK. I'm going to secure the nipple end with a rubber lined P clip. It cost £30 incl post delivery 1 week.
Hope this helps someone
Iain